All Implemented Interfaces:

com.openai.core.Enum
```
public final class ResponseCreateParams.PromptCacheRetention
 implements Enum
                    
```
The retention policy for the prompt cache. Set to 24h to enable extended prompt caching, which keeps cached prefixes active for longer, up to a maximum of 24 hours. Learn more. For gpt-5.5, gpt-5.5-pro, and future models, only 24h is supported.
For older models that support both in_memory and 24h, the default depends on your organization's data retention policy:
- Organizations without ZDR enabled default to 24h.
- Organizations with ZDR enabled default to in_memory when prompt_cache_retention is not specified.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`public enum`	`ResponseCreateParams.PromptCacheRetention.Known`	An enum containing PromptCacheRetention's known values.
`public enum`	`ResponseCreateParams.PromptCacheRetention.Value`	An enum containing PromptCacheRetention's known values, as well as an _UNKNOWN member. An instance of PromptCacheRetention can contain an unknown value in a couple of cases: It was deserialized from data that doesn't match any known member. For example, if the SDK is on an older version than the API, then the API may respond with new members that the SDK is unaware of. It was constructed with an arbitrary value using the of method.

Field Summary

Fields
Modifier and Type	Field	Description
`public final static ResponseCreateParams.PromptCacheRetention`	`IN_MEMORY`
`public final static ResponseCreateParams.PromptCacheRetention`	`_24H`

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`final JsonField<String>`	`_value()`	Returns this class instance's raw value.
`final ResponseCreateParams.PromptCacheRetention.Value`	`value()`	Returns an enum member corresponding to this class instance's value, or Value._UNKNOWN if the class was instantiated with an unknown value.
`final ResponseCreateParams.PromptCacheRetention.Known`	`known()`	Returns an enum member corresponding to this class instance's value.
`final String`	`asString()`	Returns this class instance's primitive wire representation.
`final ResponseCreateParams.PromptCacheRetention`	`validate()`	Validates that the types of all values in this object match their expected types recursively.
`final Boolean`	`isValid()`
`Boolean`	`equals(Object other)`
`Integer`	`hashCode()`
`String`	`toString()`
`final static ResponseCreateParams.PromptCacheRetention`	`of(String value)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - _value
```
 final JsonField<String> _value()
```
    Returns this class instance's raw value.
    This is usually only useful if this instance was deserialized from data that doesn't match any known member, and you want to know that value. For example, if the SDK is on an older version than the API, then the API may respond with new members that the SDK is unaware of.
  - value
```
 final ResponseCreateParams.PromptCacheRetention.Value value()
```
    Returns an enum member corresponding to this class instance's value, or Value._UNKNOWN if the class was instantiated with an unknown value.
    Use the known method instead if you're certain the value is always known or if you want to throw for the unknown case.
  - known
```
 final ResponseCreateParams.PromptCacheRetention.Known known()
```
    Returns an enum member corresponding to this class instance's value.
    Use the value method instead if you're uncertain the value is always known and don't want to throw for the unknown case.
  - asString
```
 final String asString()
```
    Returns this class instance's primitive wire representation.
    This differs from the toString method because that method is primarily for debugging and generally doesn't throw.
  - validate
```
 final ResponseCreateParams.PromptCacheRetention validate()
```
    Validates that the types of all values in this object match their expected types recursively.
    This method is not forwards compatible with new types from the API for existing fields.
  - isValid
```
 final Boolean isValid()
```
  - equals
```
 Boolean equals(Object other)
```
  - hashCode
```
 Integer hashCode()
```
  - toString
```
 String toString()
```
  - of
```
 final static ResponseCreateParams.PromptCacheRetention of(String value)
```

Class ResponseCreateParams.PromptCacheRetention

Nested Class Summary

Field Summary

Constructor Summary

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Method Detail

_value

value

known

asString

validate

isValid

equals

hashCode

toString

of